5.4l v-8 coolant temperature sensor questions

The 'Auto Zone' diagnostic trouble code was for the coolant temperature
sensor. Although the check engine light has not reappeared, I have notice a
slight decrease in mileage, the tailpipe looks light it's running a little

rich and I have a hesitation, rough idle - acts like it's getting ready to
stall when I slow for a stop...AFTER the vehicle is warm.
The sending unit is up on top, very accessible but the sensor is down in the
valley where I have to remove the air filter and alternator just to reach
it.
1) If you know what kind of wrench or socket that makes the bends to remove
this...let me know the model number so I can buy one.
2) The new sensor supplied by the dealer will not fit the present connector.
Is it uncommon to have to replace the connector?
..thanks - john 200 econoline

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